Crushing and pulverizing machine.



No. 637,076. Patented Nov. {4, I899.

W.- B. FULSUM. CRUSHING AND PULVEBIZING MACHINE.

(Application filed Mar. 2, 1899.) (N o Model.)

2 Sheets-,Sheet Na. 637,076. Patenfed Nov. !4,1s99. w. B. FOLSOM.

CRUSHING AND PULVERIZING MACHINE.

(Application filed Mar. 2, 1899.) (No Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT QFFICET.

\VILLIAM BURDETT FOLSOM, OF SALT LAKE CITY, UTAH.

CRUSHING AND PULVERIZING MACHINE.

SPECIFICATION forming part of Letters Patent No. 637,076, dated November 14, 1899.

Application filed March 2, 1899. Serial No. 707,526. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM BURDETT FOLSOM, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Crush ing and Pulverizing Machines, of which the following is a specification.

This invention relates to crushers, and particularly to a machine for reducing ore, rock, or other similar substance by crushing, grinding, and pulverizing.

The object of the invention is to provide an improved machine of special construction to-crush rock, ore, or other similarsubstance by a hammer-like action of thecrushing-jaws on said substance and then to pulverize the crushed substance to a condition of any desired fineness.

' The invention consists in the novel construction, arrangement, and combination of parts, as will be fully disclosed in the specification and claims to follow.

In the accompanying drawings, forming part of this application, Figure 1 is a side elevation. Fig. 2 is a top view. Fig. 3 is a section on line a; 00, Fig. 2. Fig. 4 is a detail view showing means for adjusting the pitman. Fig. 5 is an elevation of a modified means for connecting the roller to the lower end of the crushing-jaws.

The same numeral references denote the same parts throughout the several figures of the drawings.

It has been found that with the crushers heretofore known it is not possible to produce a hammering effect of the crushing-jaws on the rock or ore, or to vary the swing of the jaws, nor to adjust the said jaws bodilythrough their contact-roller at the lower end in order to change the. action of the jaws. It is to provide means to accomplish these several results and to produce a machine having crushing-jaws adjustable relative to each other by independent means of adjustment that my invention is primarily intended.

- The frame is of special construction to produce great strength and rigidity and to accommodate the special machinery which it carries, though I may employ other frames. This said frame comprises a rectangular top 1,

having outwardly and downwardly projecting members 2, to which are secured cross members 3 and longitudinal members 4. From this securing-point the ends of the frame are formed by arms 5, having the same slant as the members 2 and curving outward and downward to the base portion, which consists links 9 to the tie-rods 20 and have lateral ears 10, through which bolts 11 extend to connect the plates together. By this construction the plates are not attached to the jaws, but are carried with them, so as to always keep closed the interval between thejaws in the horizontal movement of the latter. The said plates being extended below and above the jaws permit the vertical movement of the latter without'exposing the interval between the jaws.

The crushing-jaws 12 have serrated or corrugated interchangeable inner face-plates 12 about half the length of the jaws, and the other or lower half of said jaws are smooth. The jaws are hung on pivots 13 and let, one being out of the horizontal plane of the other. Each pivot is journaled in a box 15, slidably secured in the sides of the frame-top 1 by adjusting-screws 16. The unequal hanging of thecrusher-jaws with their bottom ends free to swing bythe power of the driving mechanism gives the jaws an inclined downward motion alternately one toward the other and produces a hammer-like action of the jaws in the crushing operation.

The crushing-jaws are held together at the bottom and made to follow each other by a contact or follower roller 17, suspended from the frame-top 1 on the pivot 9 by hangers 19 and tie screw-rods 20, in the ends of which and the said hanger ends the roller 17 is journaled. This roller is held against a canting plane or block 21, secured to the back of one of the jaws by a keeper 22, secured upon the tie-rods against the back of the other jaw. This arrangement admits of the adjustment of the lower ends of the jaws for the purpose of varying the space or interval between the jaws by simply manipulating the nuts which hold the cant-block and adjusting the latter, said cant-block having suitable slots, through which bolts extend to admit of the adjustment of the block when the said nuts are loosened.

In Fig. 5 is shown a modification wherein two bearings 23 and 24 are formed in the ends of the tie-rods 25 for the roller 26, the roller being journaled in one or the other of said hearings in accordance with the desired adjustment of the bottom of the jaws and hung from a pivot 23 by a hanger 2%, which is in the same piece with the rods 25.

The means to impart motion to the jaws from any ordinary motive power consists of a pair of gear-wheels 27, pinions 29 on a main shaft 30, driven by a pulley 31, connected to said motive power by a suitable belt, and the said pinions meshing with the said gearwheels, said shaft 30 having suitable balancewheels32 and the pitman attached to one of the crushing-jaws at one end and the other end having journals 28 working in journalboxes 34:. j The means for adjusting the throw of the pitman and the consequentswing of. the jaws consists of the journal-boxes 34, adjustably held in toothed slots 35 of the gears 27.

-A sieve or screen 36 is suspended in a slant ing position from the braces 6 by pieces 87 under the frame, so that all deposits from the jaws will fall on the screen regardless of the position of the jaws.

The operation of the machine is as follows: After operating the screws 16 to set the jaws in accordance with the character of material to be crushed and after setting the lower ends of the jaws to produce the desired pulverization the driving mechanism is started and motion is imparted to the jaws through the pitman, the throw of which having been adjusted by moving the journal-boxes in the toothed slots the material is fed through the hopper onto faces of the jaws which hammer and crush down the material to the smooth portion of the jaw-faces, where it is pulverized by the continued friction of the lower ends of the jaws and whence it is deposited upon the screen. I

It is obvious that various changes may be made in the practical construction of the machine which amount only to equivalents of the mechanism herein shown and described.

Having thus described my invention. what I claim as new, and desire to secure by Letters Patent, is-

1. In a crushing and pulverizing machine, the combination, with the oscillating jaws, each having a single top pivot, of the pivoted hangers, the tie-rods by means of which and the said hangers the lower ends of the jaws are connected, and the follower-roller journaled in the ends of the tie-rods and hangers to make the jaws follow each other.

2. In a crushing and pulverizing machine, the adjustable pivots in the top of the frame of the machine, one of the pivots being out of the horizontal plane of the other, the crushing-jaws hung only on said pivots, with the lower ends of the jaws free to swing, the tierods and roller loosely connecting the jaws, and the hangers connected to the tie-rods and the roller, and pivoted in said frame-top centrally between the jaw-pivots, to control the movement of the said roller.

v 3. In a crusher and disintegrator, the combination, with the oscillating jaws each hung from one separate adjustable pivot out of the horizontal plane of each other, of a casing for the jaws comprising two plates pivoted centrally at one end between the jaw-pivots and extending beyond the ends of the jaws, the tie-rods and follower-roller connecting the jaws, the other end of said plates being connected to the tie-rods, whereby the plates are moved in the same direction with the jaws, to

keep closed the space between the latter, and

the hangers connected to the tie-rods and the said roller to give the rollera vertical motion during the oscillation of the jaws.

4. The combination of the crushing-jaws, a pitman connected to one jaw, an adjustable cant-block upon the other jaw, a followerroller operated on the cant-block, the tie-rods connecting the jaws, and the hangers connected to the said roller and to the tie-rods.

In witness whereof I hereunto set my hand in the presence of two witnesses.

WILLIAM BURDETT FOLSOM.

Y'Vitnesses:

O. CRIsMoN, FRANK Y. TAYLOR. 

